Machine for operating on heels.



T. LUND. MACHINE FOR OPERATING 0N HEELS. Amlcmou FILED Aum. mm

1,177,784. Patented Apr 4,1916.

2 SHEETS-UNIT T. LUND.

Patented Apr. 4,- 1916.

2 SHEETS-SHEET Z W/T/VESSES. c. Z2 6 WW! UNITED STATES PATENT OFFICE.

THOMAS LUND, 0E BEVERLY. MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING ON HEELS.

Specification of Letter: Patent.

Patented Apr. 4. 1910.

To all whom. it may concern Be it known that I, Tiionas Luna, a citizen of the United States, residing at Beverly. in the county of Essex and State of Massachusetts, have invented certain Imirovements in Machines for Operating on lleels, of which the following descri when, in connection with the accompanying rawings, is a specification, like reference characters on the drawings indicating like parts in the several ligures.

This invention relates to machines for operatin on heels and is herein shown as enibodiec in a heel nailing machine although its application is not limited to such machines but ma extend to any machines wherein it is esired to operate obliquely with tools upon a heel.

In presenting a heel to the pperation of drivers or awls, for example, it is customary to hold the heel under presiure between a jack and a die plate through the latter of which the drivers or awls reciprocate. Heretoforc the jack has been movable in horizontal ways regardless of whether the work engaging surfaces of the ack and die plate were horizontal or not. A very lar e proortion of heels now in use are prictcd obiquely and attached by nails driven at an inclination toward the rear of the heel and this is effected by holding the heels obliquely in the path of the drivers or awls. The work engaging surface of the Jack and die plate are consequently disposed at an inclination to the guideways in which the jack is mounted. his arrnngement develops a strain upon the ]itCl( post and other machine arts and also has a tendency to dis lace tie jack upon its ways.

no ob 'ect of the present invention is to im rove the conditions above set forth.

Rn important feature of the invention consists in arranging the ways for the jack at an inclination corresponding to that of the work engaging face of the die plate. This expedient eliminates all tendency to displacement of the 'ack when subjected to pressure. In fact. w ien ressure is applied to a jack mounted in guideways which are inclined upwardly from a point in alinomeat with the path of the tools the application of pressure to the jack tends strongly to hold it in its operative position. or move it to that position if slightly displaced.

Another feature of the invention consists in the provision of a jack havin its work supporting post disposed at an inclination to tiat portion of its base which slides in the inclined guideways. By employing such construction the jack post may be made to stand )arallel to the hue in w iicli pressure is app led to the work and consequently all bem ing strains are eliminated both in the jack post and in the machine parts which carry the jack support.

'1 ieso and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which Figure 1 is a view in perspective of the jack and the associated parts of the inachine, and Fig. 2 is a view in section of the parts shown in Fig. 1.

In the accompanying drawings the invention is shown as embodied in a li'htning heelin machine similar to that disc osed in Unitet States Letters Patent No. 887,84'0.

ranted May 19, 1008, on an application of iv. H. Taylor. Only such parts of the machine are herein shown as are necessary to a complete understandin of the present invention. For further etails of construction reference may be had to the patent above-identified.

The machine frame 2 has vertical journals in which reciprocate a pair of side rods 4 carrying at their upper end the cross head 6. The driver gang 7 is mounted in a removable driver black carried by the cross head. Secured to the frame beneath the cross head is the stationary die plate 8 having vertical driver passages through which the drivers reciprocate. A heel holding device 19 is located beneath the die plate.

In the lower part of the machine is located a movable jack carriage support 10 n ma which the jack carriage 19. is supporte through the medium of a quick screw 14. The jack carriage slides in vertical uides formed in part by the gibs 17 and in part by the machine frame to which the gihs are bolted. The screw 14 is rotated either manually or automatically to elevate the 'aek carriage and jack in measuring the wor preliminarily to the application of the attaching piessum. This presure is secured automatically by elevating the jack carriage support 10 and all the parts carried tiereby during the initial portion of the downward movement of the driver gang. The jack carriage support 10 is elevated through the medium of a cam 11 and other mechanism not shown.

In order that the attaching nails may be driven obliquely the work engaging face 9 of the die plate 8 is beveled as shown in Fig. 2 and the jack is so arran ed that the heel seat surface of the shoe shall be presented at a corresponding or somewhat greater inclination. The jack carria e 12 is provided with ways 13 which are inc ined downwardly toward a point beneath and in alineinent with the driver passiwes and in a direction substantially aralleF to the inclined face 9 of the die lhte.

The jack 20 is provided with a sliding base 21 having laterally extending ilang'es shaped to fit in the ways 13. The base of the jack 20 is made substantially thicker at its rear end than at its forward end so that its a per surface is substantially horizontal. '1 ie body of the jack is drilled vertically to receive the heel post 22. The post 22 is adjust-ably supported in the jack by a large corrugated nut 23 and has at its upper end an adjustablelast plate 26 which can be set in dilferent positions to accommodate lasts of different shapes. An adjustable toe post 24 is pivot-all mounted in the forward end of the body 0 the jack 20 and by the relative adjustment of the two posts 24 and 22 the roper inclination of the shoe sole may readi y be secured.

Carried by the jack carriage 12 is a pair of counter clamps 30 so arranged as to receive the counter of the shoe to be heeled when the jack is moved rearwardly into its operative position. A back gage or stop 15, also supported on the jack carriage 12, serves to limit the inward movement of the jack b engagin the back of the shoe carried tiereon. Yhen properl located the work supporting post 22 will it! directly beneath the driver gang 7.

In operation the jack is pulled forwardly into the position shown in ig. 2 and a shoe is positioned thereon. Meanwhile a heel blank is placed in the holder 19 beneath the inclined face of the die plate 8. The jack is then allowed to move rearwardly carrying the shoe into the position indicated by dotted lines in Fig. 2. The jack carriage 12 is elevated to measure the work and pressure is up lied to the work by the elevation of the jac carriage support 10. While this piessure is maintaine the driver gang makes a com )lete reciprocation driving the attaching mi and securing the heel to th e shoe. A top lift may be attached by a similar course of procedure. It will be seen that the application of pressure to the ack in a vertical direction tends to slide the jack toward the rear and so maintains the back of the shoe in close engagement with the back gage 15. On account of the fact that the post 22 is located in direct alinement with the center of pressure and at the extreme rear of the jack carriage support 12, there is no objectionable bending strain imparted to the jack carria e support or to the gibs 17 which guide the support in its vertical movement.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent of the United States:

1. A machine for operating on heels having, in tannbination, a die plate with an inclined work engaging face and vertical tool iassages, an inclined guidewav for a jack beneath the die plate, and a 'ack arranged to slide in said guideway and having a vertically disposed work supportin ost.

2. A machine for operating on beefs liaving, in combination, a die plate with an inclined work engaging face, a guideway located beneath the die plate and disposed iarallel to the work enga ing face of the ie plate, and a sliding lac having a work supporting post vertica 1y disposed in all positions on the "uideway.

3. A machine for operating on heels having, in combination, a vertically moving cross head carrying a gen of tools, a die plate beneath the cross iea having a work engaging face disposed at an inclination to the path of the tools, correspondingl in- 100 clined guideways, and a jack movable therein and havin a work enga ing post disposed parallei to the path 0 movement of the cross head.

4. A jack for a heelin machine compris- 106 ing an elongated base fiiicker at one end than at the other, having a substantially horizontal up )er surface and an inclined guideway sur ace at its lower side permittin movement of the jack in an inclined 11c pati extending in the general direction of the length of a shoe sustained by the jack, and a jack 0st ri idly maintained in a position at rig it ang es to the upper horizontal surface of the base.

6. A machine for operating on heels having, in combination, a reciprocatory driver "ang, a

die plate perforated to receive the drivers of the ang and having a work engaging face inc ined relatively to their path 12 of movement, a support having gnideways inclined in a direction parallel to the work engaging face of the die plate, and a 'ack having a sliding base thicker at one end t nm at the other whereby the jack post is held 121 in a position paral el to the path of the driver gang.

6. A mac iine for operating on heels having, in combination. a reciprocatory driver gang, a die plate, guideways inclined down- 131 wardly to a point in alinement with the path of the driver gang, sliding its forward end, .and a post disposed perand a jack having a base thicker at the rear and than at endicularly to the upper surface of the ase.

7. A machine for operating on heels having, in combination, a reciprocatory driver gan a die plate, guideways inclined ugwar ly from a point in alineinent with t e path of the driver gang, and a jack mounted therein and arranged to move by gravity into operative relation with the driver gang and having its post disposed substantially parallel to the path of t e driver gang.

8. A machine for operatin on heels having, in combination, a die p ate having an inclined face, a jack support having guideways correspondingly inclined, a jack movable in said ideways, means for relatively moving the is plate and support to subject a heel to pressure, and a stop for the jack Copies 0! thin patent may be obtained (or an cents so disposed that when pressure is applied the jack tends to ress against the sto 9. A machine or operatin on hee s having in combination, a die p ate, an op ositel disposed jack support movable re ative y thereto to sub'ect a heel to ressure, and a jack transverse y slidable wit 1 respect to the line of relative movement of the die plate and support to and from operative position in alinement therewith and eing so mounted that the ap lication of pressure thereto tends to slide tie jack into its operative osition and prevent it from being displace therefrom.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS LUND.

Witnesses:

J nuts 0. Wruon'r, Evnas'rr W. VARNEY.

each, by addressing the "Oommluioner of Patents,

Washington, D. 0." 

